Building a Reliable Node.js API

Start with clear boundaries

A reliable API separates routing, validation, business logic, and database access.

Example endpoint

router.post("/articles", authorizeAdmin, createArticle);

Reliability checklist

• Validate request bodies
• Handle errors consistently
• Protect private endpoints
• Use database transactions
• Add automated tests
• Log unexpected failures

Database transactions

Transactions keep related database operations consistent:

await prisma.$transaction(async (tx) => {
  const article = await tx.blogPost.create({
    data: articleData,
  });
 
  return article;
});

Final thoughts

Reliable systems usually come from small safeguards applied consistently—not from one complicated solution.